private IEnumerable <ProduceResponse> DecodeProduceResponse(byte[] data)
{
var stream = new ReadByteStream(data);
var correlationId = stream.ReadInt();
var topicCount = stream.ReadInt();
for (int i = 0; i < topicCount; i++)
{
var topic = stream.ReadInt16String();
var partitionCount = stream.ReadInt();
for (int j = 0; j < partitionCount; j++)
{
var response = new ProduceResponse()
{
Topic = topic,
PartitionId = stream.ReadInt(),
Error = stream.ReadInt16(),
Offset = stream.ReadLong()
};
yield return(response);
}
}
}
private IEnumerable <OffsetResponse> DecodeOffsetResponse(byte[] data)
{
var stream = new ReadByteStream(data);
var correlationId = stream.ReadInt();
var topicCount = stream.ReadInt();
for (int i = 0; i < topicCount; i++)
{
var topic = stream.ReadInt16String();
var partitionCount = stream.ReadInt();
for (int j = 0; j < partitionCount; j++)
{
var response = new OffsetResponse()
{
Topic = topic,
PartitionId = stream.ReadInt(),
Error = stream.ReadInt16(),
Offsets = new List <long>()
};
var offsetCount = stream.ReadInt();
for (int k = 0; k < offsetCount; k++)
{
response.Offsets.Add(stream.ReadLong());
}
yield return(response);
}
}
}
public static Partition FromStream(ReadByteStream stream)
{
var partition = new Partition {
ErrorCode = stream.ReadInt16(),
PartitionId = stream.ReadInt(),
LeaderId = stream.ReadInt(),
Replicas = new List <int>(),
Isrs = new List <int>()
};
var numReplicas = stream.ReadInt();
for (int i = 0; i < numReplicas; i++)
{
partition.Replicas.Add(stream.ReadInt());
}
var numIsr = stream.ReadInt();
for (int i = 0; i < numIsr; i++)
{
partition.Isrs.Add(stream.ReadInt());
}
return(partition);
}
private IEnumerable <FetchResponse> DecodeFetchResponse(byte[] data)
{
var stream = new ReadByteStream(data);
var correlationId = stream.ReadInt();
var topicCount = stream.ReadInt();
for (int i = 0; i < topicCount; i++)
{
var topic = stream.ReadInt16String();
var partitionCount = stream.ReadInt();
for (int j = 0; j < partitionCount; j++)
{
var partitionId = stream.ReadInt();
var response = new FetchResponse
{
Topic = topic,
PartitionId = partitionId,
Error = stream.ReadInt16(),
HighWaterMark = stream.ReadLong()
};
//note: dont use initializer here as it breaks stream position.
response.Messages = Message.DecodeMessageSet(stream.ReadIntPrefixedBytes())
.Select(x => { x.Meta.PartitionId = partitionId; return(x); });
yield return(response);
}
}
}
private IEnumerable <ConsumerMetadataResponse> DecodeConsumerMetadataResponse(byte[] data)
{
var stream = new ReadByteStream(data);
var correlationId = stream.ReadInt();
var response = new ConsumerMetadataResponse
{
Error = stream.ReadInt16(),
CoordinatorId = stream.ReadInt(),
CoordinatorHost = stream.ReadInt16String(),
CoordinatorPort = stream.ReadInt()
};
yield return(response);
}
public static Topic FromStream(ReadByteStream stream)
{
var topic = new Topic
{
ErrorCode = stream.ReadInt16(),
Name = stream.ReadInt16String(),
Partitions = new List <Partition>()
};
var numPartitions = stream.ReadInt();
for (int i = 0; i < numPartitions; i++)
{
topic.Partitions.Add(Partition.FromStream(stream));
}
return(topic);
}